1969 results about "Rotary valve" patented technology

An antirotation valve system for controlling flow through a valve opening defined in a compressor surface. The antirotation valve system includes a reed and a backer each having one mounting opening and one antirotation feature.

The utility model discloses an external milk foaming device of a full-automatic coffee machine. The external milk foaming device comprises a milk tank and a foaming head buckled on the milk tank, a mixing cavity as well as a suction pipe, a steam inlet pipe and a milk foam outlet pipe which are connected to the mixing cavity are arranged in an upper cover and a lower cover of the foaming head; a steam inlet pipe of the foaming head can be connected to a steam rod at the front end of the full-automatic coffee machine and used for inputting hot steam into the mixing cavity, and milk in the milk tank is pressed into the mixing cavity through a suction pipe and heated by means of atmospheric pressure through the Venturi effect. An air inlet bypasses a pipeline of the steam inlet pipe, the air inlet is connected to an air inlet rotary valve through a guide pipe, and the air inlet rotary valve can be adjusted to control the proportion of air entering the mixing cavity together with hot steam through the guide pipe and the air inlet, so that milk in the mixing cavity is foamed.

The invention relates to the technical field of assembly processing equipment, in particular to manual servo rotary valve assembly equipment and process, which comprises a press-fitting machine body and a pneumatic mechanism mounted at the upper end of the press-fitting machine body. The pneumatic mechanism controls the pressing machine head structure unit to assemble a pressed part, the pressing machine head structure unit is optimally designed, the hydraulic pressure maintaining unit is additionally arranged in a matched mode, auxiliary pressure maintaining above the pressed part is achieved, the pressure maintaining time is controlled, adjustment can be conducted according to the material, the shape and the pressing requirement of the pressed part, and the pressing efficiency is improved. Meanwhile, the press-fitting part can be quickly disassembled and replaced through the arrangement of the press-fitting part quick-replacing unit, the press-fitting parts of different shapes and sizes can be quickly replaced conveniently, and maintenance is convenient; the problems that it is difficult to guarantee that the shape and the position of the pressed part can be stably kept when an existing device fails, and continuous pressure maintaining of the assembled part cannot be achieved are further solved.

The servo valve comprises an outer shell, a valve assembly is arranged in the outer shell, the valve assembly is connected with a nested antler channel, and the nested antler channel is used for being connected with hydraulic equipment; the valve assembly comprises a rotary valve rod, a valve element and a valve sleeve, the axis of the rotary valve rod is perpendicular to the axis of the valve element, the valve element is coaxially and movably arranged in the valve sleeve, the bottom of the rotary valve rod is connected with a crankshaft, the crankshaft is sleeved with a first bearing, and the valve sleeve is arranged in the nested antler channel. A plurality of through holes used for being communicated with the nested antler channels are formed in the valve sleeve in the axial direction of the valve sleeve, a movable groove matched with the crankshaft is formed in the middle of the valve sleeve in the radial direction, a kidney-shaped mounting hole matched with the first bearing is formed in the valve element, and the length direction of the kidney-shaped mounting hole is perpendicular to the axial direction of the valve element. And at least one annular sleeve is fixedly arranged on the valve element and located on the two sides of the mounting hole in a sleeving mode, the annular sleeves are used for blocking the through holes in different positions, and the valve rod has the advantages that abrasion of the valve rod is reduced, and the service life is prolonged.

The utility model provides a quick-connection ball valve which comprises two ball valves, the two ball valves are in linear clamping connection, each ball valve is provided with a through hole for fluid to pass through, each ball valve comprises a valve body, a valve element is arranged in each valve body, each valve element is connected with a valve rod, the end, away from the corresponding valve element, of each valve rod extends out of the corresponding valve body, and the end, extending out of the corresponding valve body, of each valve rod is connected with a handle. The handle drives the valve element to rotate through the valve rod. And the valve body is provided with a locking device. The locking device comprises a locking groove and a locking column; the handle is in driving connection with the locking column. When the handle is closed, the locking column is arranged in the valve body; when the two ball valves are in butt joint and the handle is opened, the handle drives the locking column to stretch into the locking groove of the other ball valve, the locking device locks the two ball valves, the two ball valves are prevented from rotating and disengaging, fluid leakage caused by looseness is avoided, and the safety of valve body connection is improved.

Process for feeding plastic material, e.g. a plastic waste, to a processor such as a thermochemical reactor, e.g. a pyrolysis reactor. The process comprises an optional shredder or disintegrator (1), a conveying system (2), a feed hopper (3) with a lock hopper or rotary valve, a melting tank (6) with an agitator (5) followed by a melt pump (7) for the delivery of molten plastic to the processor. The advantage of the current process includes the ability to supply a consistent, metered flow to the processor, independent of the recycled plastic's melt properties, or the form or particle size and distribution of the plastic material.

The utility model discloses a rotary valve structure of a dust cup of a dust collector, which comprises an outer dust cup, a plurality of first cavities are arranged in the outer dust cup, a first communication hole is arranged on a partition plate, and the outer dust cup is provided with a first dust discharge port corresponding to a dust discharge channel of a base station of the dust collector; and the inner dust cup is rotationally connected to the partition plate and provided with a second communicating hole and a second dust discharging opening, and a linkage piece corresponding to a rotary guide groove in the dust collector base station is arranged on the outer side of the inner dust cup. The outer dust cup and the inner dust cup form a rotary valve structure, so that when the dust collector host and a base station are assembled in a butt joint manner, the linkage piece is matched with the rotary guide groove to rotate the inner dust cup, each dust collection cavity and a corresponding filtering structure are blocked, and dust is prevented from flowing reversely when garbage in the dust cups is discharged and recycled; and dust, hair and dirt with different particle sizes intercepted by the dust collection cavities are discharged respectively, dirt and garbage blockage in the dust discharge channel is avoided, and therefore it is guaranteed that the dust collector is used neatly, conveniently and efficiently.

The utility model discloses a vibration reduction assembly and an extremely low vibration reduction system for an extremely low temperature refrigeration platform. The vibration reduction assembly comprises a main frame. The active suppression platform is arranged above the main frame, reads a signal in real time through a sensor in the active suppression platform and feeds back the signal to an internal control unit, and the control unit sends an instruction to reversely adjust the compression amount of an internal spring so as to realize active vibration reduction; the rotary valve vibration reduction mounting seat is used for respectively fixing the rotary valve motor and the phase modulation air reservoir through a supporting plate and a fixed clamping block and realizing vibration reduction through a vibration reduction element arranged in the rotary valve vibration reduction mounting seat; a second vibration reduction body is arranged in the corrugated pipe assembly so as to reduce vibration in the vertical direction and the radial direction. The active suppression platform is arranged to actively eliminate vibration, vibration or vibration transmission can be reduced, the corrugated pipe is arranged above the active suppression platform, vertical vibration of the cold head of the refrigerating machine can be reduced, the second vibration reduction bodies are arranged on the periphery of the corrugated pipe body, and radial vibration of the cold head of the refrigerating machine can be reduced through the second vibration reduction bodies.

The invention discloses a multi-channel airflow distribution rotary valve applied to a molecular sieve oxygen generation bottom valve and overhead valve combination, and belongs to the technical field of airflow switching rotary valves. The top valve and the bottom valve are vertically arranged and installed on the fixing frame, a first valve cavity is formed in the top valve, and a second valve cavity is formed in the bottom valve; the bottom valve is provided with an air inlet communicated with the second valve cavity; the overhead valve and the bottom valve are communicated with the adsorption tower A, the adsorption tower B, the adsorption tower C and the adsorption tower D; the first control mechanism and the second control mechanism are arranged in the first valve cavity and the second valve cavity respectively; and the driving part is located between the bottom valve and the top valve, the first end of the driving part is in driving connection with the first control mechanism, and the second end is in driving connection with the second control mechanism. The bottom valve is mainly used for air intake and desorption; the overhead valve is mainly used for oxygen outlet and air outlet end pressure equalizing, the driving part drives the first control mechanism and the second control mechanism to rotate, cost is low, performance is stable, the system integration degree is high, and stability is achieved.

The invention relates to the technical field of glaze pretreatment in the field of glass processing, and discloses a multifunctional glass glaze filtering and stirring machine. Comprising a filtering stirrer control screen, a lifting frequency control spring, a rotary valve, a glass glaze adding funnel, a switch valve, a stirring head, a gauze replacing valve, a glass glaze barrel, a filtering stirrer bracket and a filtering stirrer fixing balance rod, a glass glaze barrel is arranged on the filtering and stirring machine support and is connected with a barrel cover through threads, a glass glaze adding funnel is arranged on the barrel cover, and a switch valve is arranged on a channel of the glass glaze adding funnel; the filtering stirrer control screen is arranged on the filtering stirrer bracket and is at least provided with an ascending button, a descending button and a rotating button; and the lifting frequency control spring is arranged above the barrel cover. The invention provides integrated and automatic multifunctional equipment, efficient filtering is achieved in the stirring process, and meanwhile the problems of blockage, pollution and parameter adjustment are solved.

The utility model relates to a discharging device based on an upward expanding type pneumatic bottom valve, and belongs to the field of discharging devices.The discharging device comprises a hopper, and a conveying opening is formed in the lower end of the hopper; the valve body is connected with the hopper, the valve body is a cavity body with openings in the two ends, the valve body comprises a feeding section and a discharging section which are communicated with each other, a feeding port is formed in the end, away from the discharging section, of the feeding section, and the feeding port is communicated with the conveying port; a discharging opening is formed in one end, far away from the feeding section, of the discharging section; a valve clack is arranged at the position, corresponding to the feeding port, of the feeding section, can seal the feeding port and is provided with a valve rod, an electric rotating push rod is arranged at the end, away from the valve clack, of the valve rod and can drive the valve rod to stretch out and draw back and rotate, the valve rod stretches out and draws back to drive the valve clack to move, and opening and closing of the feeding port are achieved. A scraper is arranged in the feeding section of the valve rod, a brush is arranged at the end of the scraper, the end of the brush abuts against the inner wall of the feeding section, and the inner wall of the feeding section is cleaned by the brush through rotation of the valve rod. The valve has the effect that the valve body is more convenient to clean.

The present invention discloses a dynamic composite distortion simulator and a working method thereof in the technical field of aero-engine air inlet and engine matching. The simulator comprises a process air inlet, a spoiler column, a rotary valve and a high-speed motor. The spoiler column is installed inside the process air inlet, and the rotary valve is installed in the cavity of the spoiler column. One end of the rotary valve extending out of the spoiler column is connected to the high-speed motor. Dynamic distortion vortices are formed by utilizing the flow around the column and the rotary valve, and parameters such as the intensity and scale frequency of the vortex change with changes in the motor speed and the angle of attack and height of the spoiler column. This can effectively simulate the dynamic distortion flow field structure generated in the air inlet due to various reasons, overcome the shortcomings of existing simulators in simulating dynamic distortion, form a flow structure similar to the distortion flow field at the outlet of the real air inlet, so as to more realistically simulate the air inlet matching process, significantly improve the experimental efficiency and accuracy, and do not require an external air source.

According to the nucleic acid extraction and detection device and the use method, by forming a plurality of communicating holes and taking a rotary valve as a communicating medium, communication among functional chambers is achieved, then sample transfer is achieved, the whole transfer process is completed in an internally-closed environment, sample pollution is not caused, and the detection efficiency is improved. The rotating cover and the rotating valve rotate synchronously, and the rotating cover is also closed when the rotating valve is closed, so that the sealing performance of the cavity in the uniform mixing and reaction process is ensured, and the stability of a pre-stored reagent and the safety of the reaction process are ensured; the sample transfer step is reduced, the pollution risk is reduced, the whole process is completed only through manual operation without a power supply or other equipment, and the method can be used for household self-inspection or in areas with limited resources or even in extreme environments without power supply.

A friction reduction tool configured for selective activation downhole in response to a variation in a media flow's operating condition. A valve assembly and an activation assembly are both positioned downstream of a power assembly, which is configured to rotate a rotating valve segment of the valve assembly with media flow through the tool. The activation assembly is configured to transition from a first position to a second position with the media flow operating condition variation. In the first position, the activation assembly provides a bypass flow path around the valve assembly for at least a portion of the media flow, thereby preventing the valve assembly from generating any significant pressure pulse with rotation of the rotating valve segment. In the second position, the bypass flow path is closed such that all or a majority of the media flows through the valve assembly, thereby generating a significant pressure pulse.

According to the technical scheme, the underwater rotary hydraulic proportional valve is characterized in that the underwater rotary hydraulic proportional valve comprises a valve body, a steel sleeve, a shell, a coil, a magnet yoke, a stator iron core, an inner end cover, a sealing ring a, a dustproof screw, a sealing ring b, a rotary transformer, a permanent magnet, a sealing ring c, a valve sleeve, a valve element, a bearing and a sealing ring d, and is characterized in that a plurality of hydraulic oil ports are formed in the valve body; the hydraulic oil port is communicated with the oil port through the multiple valve cavities, the shell is installed at one end of the valve body, a driving cavity is formed in the shell, and the valve element and a rotating shaft of the motor are integrated. The wet-type limited angle torque motor is adopted to drive the rotary valve and the valve element to rotate, a motion conversion device is omitted, the valve element and the valve sleeve rotate relatively, friction force is small, the anti-pollution capacity is high, the axial leakage problem does not exist, a motor shaft of the limited angle torque motor can rotate within a limited angle range, and the advantages of being convenient to control, large in torque density, high in reliability and the like are achieved. And the method is simple and reliable.

The cooling module includes: a manifold being made of resin and including a plurality of housings joined to one another; and a rotary valve formed by arranging a valve body rotating about a rotation axis in a cylindrical valve chamber formed in the manifold. The manifold includes a plurality of internal flow paths through which fluid flows and a plurality of ports that are connected to a plurality of the internal flow paths and through which the fluid flows in or flows out. The rotary valve has a full communication mode in which, when the fluid is flowed in from one port of a plurality of the ports, the fluid can be flowed out from all the other ports.

The invention relates to an efficient and energy-saving system for continuously removing VOC (Volatile Organic Compounds) from a polypropylene material. The system comprises a, a feeding device; the ridge tower sequentially comprises a preheating section, a devolatilization section, a pre-cooling section and a cooling section from top to bottom, a middle rotary valve is arranged between the pre-cooling section and the cooling section, and the preheating section, the devolatilization section and the pre-cooling section are used for conducting preheating, devolatilization and pre-cooling treatment on the PP particles under the action of heated nitrogen; a feeding rotary valve is arranged at the top of the ridge tower, and a discharging rotary valve is arranged at the bottom of the ridge tower; the nitrogen generating device and the heater are respectively used for generating and heating nitrogen so as to provide hot nitrogen required by devolatilization treatment; a heating section fan is arranged between the nitrogen generating device and the heater; d, a cooling section fan is used for further cooling the pre-cooled PP particles; and e, a middle rotary valve and a discharging rotary valve. The VOC in the polypropylene granules is reduced to be less than 50ppm through nitrogen operation, and the odor grade is less than 4.0. Finally, the VOC content in the polypropylene is reduced, meanwhile, the odor grade is reduced, and the quality of the polypropylene resin is improved.

The present application discloses a method for detecting the position of a rotary valve of a food processing machine. The food processing machine includes a rotary valve provided with a magnet, a linear Hall, and a signal control unit electrically connected to the linear Hall. The method includes at least: a signal acquisition stage: the signal control unit acquires the magnetic field strength signal of the magnet during the rotation of the rotary valve through the linear Hall; a signal processing stage: the signal control unit calculates and compares a plurality of the magnetic field strength signals to obtain the change trend of the magnetic field strength signal, and the change trend includes the critical jump of the magnetic field strength signal; a signal recognition stage: the signal control unit recognizes that the rotary valve has turned to the set position according to the critical jump. Through the technical solution of the present invention, the rotary valve can be accurately identified to reach the set position according to the critical jump, eliminating the influence of the rotary valve position deviation, and can also detect the situation of rotary valve blocking to avoid misjudgment.

The invention relates to the technical field of well cementation operation, in particular to an automatic well cementation multi-channel integrated control device which comprises a main valve body, a rotary valve element, a gland and a driving device, the main valve body is provided with a mounting cavity with an upward opening, the rotary valve element with the upper end located above the mounting cavity is arranged in the mounting cavity, and the rotary valve element is rotationally connected with the main valve body; the rotary valve element is provided with a communicating cavity with a downward opening, a gland fixedly installed together with the outer side of the upper end of the main valve body is arranged on the outer side of the upper portion of the rotary valve element, the rotary valve body is rotationally connected with the gland, and a driving device capable of driving the rotary valve element to rotate is arranged at the upper end of the rotary valve element. The quick switching valve is reasonable and compact in structure and convenient to use, through holes in different positions communicate with the communicating cavity by rotating the rotary valve element, and therefore quick switching of different working solutions is achieved; the forward blades and the reverse blades are arranged, so that two paths of cement paste are fully and uniformly mixed; and by arranging the station display device, the current working state is visually displayed, and the device has the characteristics of stability, reliability and high efficiency.

The invention provides a low hydraulic power rotary valve structure with an anti-clamping stagnation clutch, which comprises a valve sleeve (1), an outer valve core (2), an inner valve core (3), a ball (4), a pressing plate (5) and a spring (6), and the inner valve core (3) is connected with a motor rotating shaft and rotates along with the motor rotating shaft; the outer valve element (2) is arranged on the outer side of the inner valve element (3) in a sleeving mode from the bottom of the inner valve element (3), and the valve sleeve (1) is arranged on the outer side of the outer valve element (2) in a sleeving mode from the bottom of the outer valve element (2). A plurality of V-shaped grooves are evenly distributed in the circumference of the end face of the top of the outer valve element (2), balls (4) are arranged in the V-shaped grooves, a motor rotating shaft is sleeved with the pressing plate (5) and the spring (6), and the spring (6) presses the balls (4) through the pressing plate (5) so that the bottom of the outer valve element (2) can make contact with the internal storage bottom of the valve sleeve (1). An oil way on the outer valve core (2) is the same as that of the valve sleeve (1) and is used for realizing oil way communication between the valve sleeve (1) and the inner valve core (3); when the inner valve element (3) and the outer valve element (2) are clamped, the outer valve element (2) can overcome the elastic force of the spring (6) by increasing the input torque of the motor rotating shaft, so that the inner valve element (3) and the outer valve element (2) are driven to rotate at the same time to ensure that the function of the rotary valve is normal, and clamping is prevented.

The utility model belongs to the technical field of material conveying, and particularly relates to a water cooling structure and a water cooling system of a rotary valve and the rotary valve, the water cooling structure of the rotary valve comprises 13 cooling water channels, and a transmission shaft cooling water channel is arranged in a transmission shaft; the working side flange and the transmission side flange are respectively provided with a working side flange cooling water path and a transmission side flange cooling water path; the working side stuffing box and the transmission side stuffing box are respectively provided with a working side stuffing box cooling water path and a transmission side stuffing box cooling water path; eight shell cooling water ways are distributed in the inner partial area of the rotary valve shell. According to the rotary valve, a reasonable water cooling structure with multiple cooling waterway partitions is adopted, partition arrangement of the water cooling structure is optimized, the problems of cooling dead zones and large resistance loss of the cooling waterways caused by unreasonable water waterway partitions are solved, cooling efficiency and high temperature resistance are improved, and reliability of the rotary valve is further improved.

The present disclosure provides a double-tank oral irrigator. The double-tank oral irrigator includes a rotary valve, a first tank, a second tank, a water guide pipe, and a pump assembly. The rotary valve includes an outlet part, a first inlet part, a second inlet part, and a valve core. The rotation of the valve core enables adjustment of the sealing degree of the valve core to the first inlet part and the second inlet part. The first inlet part is connected to the first tank, the second inlet part is connected to the second tank, and one end of the water guide pipe is connected to the outlet part. The pump assembly is connected to the other end of the water guide pipe and a spray outlet of the oral irrigator.

Disclosed are a valve assembly and a fluid control device. The valve assembly (1) comprises a valve housing assembly (10) and a valve core (20). The valve housing assembly is provided with a valve cavity (101), normally-open ports (103), and selectively-open ports (102). The normally-open ports comprise a first port (P1) and a second port (P2). At least part of the valve core is located in the valve cavity. The valve core can rotate around an axis (X-X). The valve core comprises a first connection channel (251) and a second connection channel (252) which are isolated from each other. The first connection channel comprises a first connection port (21). The second connection channel comprises a second connection port (22). The first connection port and the second connection port are located at the axial ends of the same valve core. In any working mode of the valve assembly, the first connection port is communicated with the first port, the second connection port is communicated with the second port, and the first port and the second port are selectively communicated with different selectively-open ports by rotating the valve core, thereby enabling the valve assembly to be provided with at least two normally-open ports.

A coolant control valve is provided that includes an actuator, a rotary valve body, a valve housing, a seal housing, and a movable seal. The rotary valve body is rotatably actuated by the actuator and includes at least one fluid opening. The movable seal is arranged within an annular groove of the seal housing and is: i) sealingly engaged with the annular groove, and ii) forcibly sealingly engaged with the rotary valve body via a force generator. The force generator is arranged radially adjacently to the movable seal within the annular groove.

The invention discloses an upper pressure inlet type eccentric rotary valve, and relates to the technical field of upper pressure inlet type valves. An upper pressure inlet type eccentric rotary valve comprises a valve body, the valve body comprises a liquid inlet flow channel, a liquid flow channel and a liquid outlet flow channel which are internally communicated in sequence, the liquid flow channel is provided with a sleeve, the sleeve is provided with a liquid inlet port and a liquid outlet port, the liquid inlet port is communicated with the liquid inlet flow channel, and the liquid outlet port is communicated with the liquid outlet flow channel; the liquid inlet port is provided with a valve core, the valve body is provided with a valve cover, the valve cover is provided with a control mechanism connected with the valve core, and the control mechanism is configured to be capable of driving the valve core to rotate so as to open / close the liquid inlet port; the valve element is provided with an opening position and a closing position, and liquid entering the liquid inlet flow channel moves towards the liquid outlet flow channel through the sleeve and impacts the valve element so that the valve element can move from the opening position to the closing position. The invention has the function of being easy to open but not easy to close.

A hydraulic pulse-type soluble segmented acid fracturing slide sleeve and a pulse acid fracturing construction method. The slide sleeve comprises a slide sleeve outer cylinder (1) and a rotary valve assembly, and flow-passing holes (101) are formed on the slide sleeve outer cylinder (1); the rotary valve assembly comprises a valve core (2) and a valve ball (13), and the valve ball (13) can block a passage (203); a flow guide channel (206) and flow splitting channels (207) are formed between the outer wall of the valve core (2) and the inner wall of the slide sleeve outer cylinder (1); the slide sleeve outer cylinder (1) has a first position and a second position in the axial direction; when the valve core (2) is located at the first position, the outer wall of the valve core (2) blocks the flow-passing holes (101); an acid fracturing working fluid flowing through the flow guide channel (206) can push the valve core (2) to move from the first position to the second position along the slide sleeve outer cylinder (1), and push the valve core (2) to continuously rotate at the second position, so that the flow splitting channels (207) are alternately communicated with the flow-passing holes (101), the acid fracturing working fluid is discharged from the flow-passing holes as hydraulic pulses, hydraulic pulses with a proper frequency can be excited at the bottom of a well, energy attenuation is reduced, and the formation of a complex fracture network is promoted in a stratum.

The present invention discloses a rotary valve, which includes: a valve body, which is a cylindrical structure, and is provided with three flow channel groups; and a valve sleeve, whose coaxial sealing sleeve is provided on the valve body, and the valve sleeve is evenly provided with multiple through holes, the inner end of each through hole extends to form a vertical groove, and the vertical groove is divided into three sections along the vertical direction, corresponding to the ports of different flow channel groups respectively. A switching valve is provided at the through hole, and the switching valve connects the through hole to the two sections of the vertical groove, thereby switching the corresponding two flow channel groups to a working state. The valve body rotates around the axis relative to the valve sleeve so that the multiple through holes are combined and connected with the ports of the two flow channel groups in the working state, thereby changing the process operation mode. Each through hole is connected to at most one port of the valve body. The present invention also discloses a pressure swing adsorption device. The rotary valve of the present invention can switch the working state of the flow channel group, realize online switching of the timing process, meet the demand for improvement of process conditions due to fluctuations in on-site raw materials, and enhance production flexibility.

Disclosed is a flow path switching device including: a case including a first nozzle into which fluid is introduced, a second nozzle through which fluid is discharged, a plurality of inner outflow pipes through which fluid supplied from the first nozzle flows, a plurality of inner inflow pipes through which the fluid supplied to the second nozzle flows, and a flow path connection portion in which a space is formed to communicate the plurality of inner outflow pipes with the first nozzle or to communicate the plurality of inner inflow pipes with the second nozzle; a valve rotatably disposed in the space of the flow path connection portion, and having a first chamber connecting one of the plurality of inner inflow pipes and the first nozzle according to placement, and a second chamber connecting one of the plurality of inner outflow pipes and the second nozzle; and a motor disposed in one side of the valve and rotating the valve. Each of the first nozzle, the inner outflow pipe, and the flow path connection portion forms a flow path perpendicular to each other inside. A first chamber hole connecting the first chamber and a nozzle flow path formed inside the first nozzle is formed in the valve. A cross-sectional area of the nozzle flow path is reduced to a size corresponding to the first chamber hole from an inlet portion of the first nozzle towards the flow connection portion.

A full temperature range simulated rotated moving bed PSA process for extracting H2 and NH3 from GaN-MOCVD exhaust gas, includes a medium and high temperature PSA ammonia concentration system and an intermediate gas PSA hydrogen purification system, which include multiple axial flow fixed bed adsorption towers arranged in the center of upper and lower two multichannel rotary valves, mounted on the periphery of an annular rotary tray, and connected through pipelines. For the gas flowing through rotary valve channels, pipelines between inlet and outlet ends of the channels and inlet and outlet ends of the adsorption towers, and adsorption bed layers, mass transfer in respective adsorption and desorption steps is completed while the gas entering and exiting the inlets and outlets of the adsorption towers and adsorption bed layers while rotating. Thus, the simulated rotated moving bed PSA process is formed.

A valve assembly for controlling cooling fluid in a vehicle including:a valve housing having a housing body and a cover connected to the housing body, a valve body receiving space in the valve housing, which is enclosed by the housing body and the cover,a fluid line system having fluid lines, which run in different spatial regions starting from the valve body receiving space,a valve body accommodated in the valve body receiving space rotatable about an axis, the valve body tapering along the axis such that by rotating the valve body about the axis, a fluid connection situation of at least two fluid lines of the fluid line system is changeable, anda prestressing means, which applies a pressure onto the valve body along the axis in the tapering direction,the valve body and the housing body formed as injection molded parts from thermoplastic.